Sector: A sector is a part of a circle.
Chord: A chord is a straight line connecting two points on a circle.
Diameter: A diameter is a straight line passing through the center of the circle and touching two points on the circle.
Diagonal: A diagonal, on the other hand, is not specific to circles; it refers to a line connecting two non-adjacent vertices of a polygon.
Therefore, the correct group consists of 1, 2, and 4.
Shown below on the left are two views of a bent wire. Which option is the top view of the wire?
The diagram below shows a river system consisting of 7 segments, marked P, Q, R, S, T, U, and V. It splits the land into 5 zones, marked Z1, Z2, Z3, Z4, and Z5. We need to connect these zones using the least number of bridges. Out of the following options, which one is correct? Note: